| Sulphur to Chivasso | 5,265.25 mi (8,473.60 km) |
| Sulphur to Ciampino | 5,588.30 mi (8,993.49 km) |
| Sulphur to Cicciano | 5,703.66 mi (9,179.16 km) |
| Sulphur to Cingoli | 5,556.04 mi (8,941.58 km) |
| Sulphur to Cinisello Balsamo | 5,309.10 mi (8,544.17 km) |
| Sulphur to Cinisi | 5,747.51 mi (9,249.73 km) |
| Sulphur to Cirie | 5,251.56 mi (8,451.58 km) |
| Sulphur to Ciro Marina | 5,879.13 mi (9,461.54 km) |
| Sulphur to Cislago | 5,295.18 mi (8,521.76 km) |
| Sulphur to Cisterna di Latina | 5,606.03 mi (9,022.03 km) |
| Sulphur to Cisternino | 5,837.24 mi (9,394.12 km) |
| Sulphur to Citta di Castello | 5,511.39 mi (8,869.73 km) |
| Sulphur to Citta Sant'Angelo | 5,623.46 mi (9,050.08 km) |
| Sulphur to Cittadella | 5,412.13 mi (8,709.98 km) |
| Sulphur to Cittanova | 5,874.12 mi (9,453.48 km) |
